Fisher 244ER, 244EH manual Field Wiring, 10. Complete Transmitter Configuration System

Rosemount Models 244EH and 244ER PC-Programmable Temperature Transmitters

5.Turn on the Model 244EC using the power switch on the top side of the housing.

NOTE

Verify that the Model 244EC “Low Battery” LED is not on before initiating communication with the transmitter. If the low battery LED is on, you will not be able to configure the transmitter.

6.Using your PC, open the Configuration Software program. Access the online help if you have questions regarding the use of the program.

Figure 2-10. Complete Transmitter

Configuration System

Windows-based PC Running

the Configuration Software

Model 244EC

Configuration

Interface

Model 244EH or 244ER Transmitter

244-011AB

FIELD WIRING

All power to the transmitter is supplied over the signal wiring. Use ordinary copper wire of sufficient size to ensure that the voltage across the transmitter power terminals does not drop below 12.0 V dc.

If the sensor is installed in a high-voltage environment and a fault condition or installation error occurs, the sensor leads and transmitter terminals could carry lethal voltages. Use extreme caution when making contact with the leads and terminals.

NOTE

Do not apply high voltage (e.g., ac line voltage) to the transmitter terminals. Abnormally high voltage can damage the unit. (Sensor and transmitter power terminals are rated to 42.4 V dc.)

For multichannel installations, see “Multichannel Installations” on page 2-9.The transmitters will accept inputs from a variety of RTD and thermocouple types. Refer to Figure 2-12 on page 2-15when making sensor connections.

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